Where did / was The First Festival of Modern Poetry held / organised?

Answer:

The First Festival of Modern Poetry was held / organised at Lucien Labaudt Gallery, Gough Street near Northwest, San Francisco, CA, USA

Next Question: Where did / was the the Term 'Martian Poetry' First used / originate?

Previous Question: Where did Romanticism originate / developed / emerged / evolved?

Literature & Language (Q&A)